// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-generator-function-definitions
es6id: 14.4
description: YieldExpression may be followed by a TemplateMiddle construct
info: |
  The syntactic context immediately following yield requires use of the
  InputElementRegExpOrTemplateTail lexical goal.
features: [generators]
---*/

function Test() {
    var complete = false;
    var iter, iterResult, str;
    function* g() {
      str = `1${ yield }3${ 4 }5`;
      complete = true;
    }

    iter = g();

    assert.sameValue(complete, false, 'generator initially paused');
    assert.sameValue(str, undefined, 'first statement not executed');

    iterResult = iter.next();

    assert.sameValue(complete, false, 'generator paused following expression');
    assert.sameValue(str, undefined, 'first statement not executed');

    assert.sameValue(iterResult.done, false, 'iteration not complete');
    assert.sameValue(iterResult.value, undefined, 'first iterated value');

    iterResult = iter.next(2);

    assert.sameValue(str, '12345', 'YieldExpression value');
    assert.sameValue(complete, true, 'generator correctly re-started');
    assert.sameValue(iterResult.done, true, 'iteration complete');
    assert.sameValue(iterResult.value, undefined, 'second iterated value');
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
